WO2003007554A1 - Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology - Google Patents
Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology Download PDFInfo
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- WO2003007554A1 WO2003007554A1 PCT/DE2002/002544 DE0202544W WO03007554A1 WO 2003007554 A1 WO2003007554 A1 WO 2003007554A1 DE 0202544 W DE0202544 W DE 0202544W WO 03007554 A1 WO03007554 A1 WO 03007554A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
Definitions
- Network component for an optical network with an emergency function in particular for an optical network in ring topology
- the present invention relates to a ne component for an optical network with an emergency function, in particular for an optical network in a ring topology.
- Multimedia systems in modern motor vehicles are constructed as networked systems that use optical or electrical bus systems in a ring topology.
- key components for example an operating unit
- the internal structure of which consists of a large number of individual components (for example a man-machine interface processor, tuner, gateway, etc.).
- the arrangement of these components in a housing requires, for reasons of bus conformity, a message and data exchange via the external bus, ie an internal data exchange between individual, independent components is not permitted.
- the components combined in one device behave like separate logical devices.
- FIG. 2 shows the construction of a known multimedia system for motor vehicles with an optical bus system 1 in the form of a ring topology.
- D2B, MOST or similar systems can be used here as bus systems customary in motor vehicles.
- Further components 3a-d are integrated into this optical ring.
- the optical coupling of a certain component 3d, which is explained in more detail here, to the optical bus system 1 takes place via a plug system 2, which in turn is made up of a receiver module 4 and a transmitter module 5.
- the receiver module 4 receives optical signals from the optical bus system 1 and converts them into electrical signals. Electrical signals are converted into optical signals in the transmitter module 5 and fed into the ring 1.
- Component 6 consists of a transceiver 8 and a processor 9.
- a transceiver 8 In addition to the transceiver 10 and the pro processor 11, yet another interface, here implemented as a CAN bus interface 12, for data and command exchange with other conventional bus systems in the motor vehicle via the lines CAN_H and CAN_L, which is connected to the processor 11 via the bus B3.
- Line 22 is connected to an output STATUS of plug system 2 and reports activity (light) on optical ring 1 to processor 9 or 11 of internal components 6 or 7.
- Optical signals from ring 1 are available as electrical signals at output RX_DATA of receiver module 4 on line 13 and are passed on to input 15 of transceiver 8 of component 6.
- processor 9 can fetch data and commands from the ring via the bus B1 and feed them via the output 16 of the transceiver 8 and the line 17 into the input 18 of the transceiver 10, via the transceiver 10 the data exchange takes place via the bus B2 from the processor 11, which feeds its data via the output 19 from the transceiver 10 and the line 21 into the input TX_DATA of the transmitter module. After electrical / optical conversion in the transmitter module 5, the data and commands are available on the optical ring 1.
- processor 11 receives data intended for processor 9 via CAN interface 12, or if data is to be exchanged between processors 9 and 11, this can only be done via optical ring 1, line 13, transceiver 8, line 17, Transceiver 10 and line 21 take place.
- the coupling point between the optical bus system and the electrical ring is the connector system 2. If the optical bus system 1 breaks or there is a faulty contact on the connector system 2, data exchange between the components within the device is no longer possible. This results in a total failure of the device, even if operation of the device without additional participants from the optical bus 1 would be possible within the device or via other vehicle-specific interfaces (e.g. CAN interface 12).
- the problem underlying the present invention generally consists in designing a network component for an optical network with emergency operation function, in particular for an optical network in ring topology, which has minimal emergency operation properties (e.g. operability by the driver, error display, acoustic signal) if the optical or electrical ring breaks Warnings, maintenance of minimal (radio) functions guaranteed within the component.
- emergency operation properties e.g. operability by the driver, error display, acoustic signal
- the network component according to the invention for an optical network with an emergency function, in particular for an optical network in a ring topology, with the features of claim 1 has the following advantages:
- the identical software can be used to its full extent in the fault and normal mode
- this concept can be expanded as required within the network component. Any number of additional components can be integrated in the connection between the first and second data processing devices.
- the idea on which the present invention is based is to maintain an emergency running property of various key components within a network component by interconnecting these key components in a minimal ring system.
- the full The functionality of the network components can then be used, minus the functions that are made available by other bus participants on the optical ring.
- the coupling device comprises an optical connector system.
- the receiving module has the detection device for detecting the network status and outputs a logical electrical signal of at least one bit according to the respective network status active / inactive.
- the first data processing device and / or the second data processing device are connected to the detection device.
- the first data processing device and / or the second data processing device have a transceiver and a processor connected to each.
- the switching device receives the logical electrical signal as Control signal and connects the input of the first data processing device to the Err.pfar.gsmoul when the network status is active and connects the input of the first data processing device to the output of the second data processing device when the network status is not active.
- the first and / or second data processing device is connected via an interface to a wired network.
- the first data processing device and / or the second data processing device output a missing logical electrical signal to indicate an active network status after sending an own message on a display or via the interface as an error message.
- Figure 1 shows the structure of a multimedia system for motor vehicles with emergency running property according to an embodiment of the invention.
- Fig. 2 shows the structure of a known multimedia S stems for motor vehicle.
- FIG. 1 shows the construction of a multimedia system for motor vehicles with emergency running properties according to an embodiment of the invention.
- the same reference numerals as in FIG. 1 denote the same or functionally identical components.
- a switch 23 is inserted in this embodiment to ensure emergency running properties.
- the switch 23 is connected with its input INI and the line 13 with the output RX_DATA of the plug system 3.
- the second input IN2 of the switch 23 is on the line 21 and is thus connected to the output T_DATA of the connector system 3.
- the output OUT of the switch 23 is connected to the input 15 of the transceiver 8 via the line 28.
- the input EN ⁇ of the switch 23 is connected to the line 22.
- the changeover switch 23 is constructed such that its output OUT is optionally connected to one of the inputs INI or IN2 depending on the signal voltage at the input EN ⁇ .
- the potential at EN N is selected such that the input INI is connected to the output OUT at O potential, ie the input IN2 is connected to the output OJT at 1 potential.
- the potential at ⁇ ' can be reversed by selecting an appropriate switch or taking suitable circuit measures.
- Bus activity is signaled by O potential on the line 22 to the processors 9 and 11 and is located at the input EN 'of the switch 23, which connects the input INI to the output OUT by the potential change at E'.
- the signals from the optical ring 1 pass via the output RX_DATA of the receiver module 4 and the line 13 to the input INI of the switch 23, whose output OUT is connected to the input 15 of the transceiver 8 via line 28.
- the bus structure is connected: External components 3a-c and internal components 6 and 7 can exchange data with each other.
- the processors 9 and 11 can e.g. Display or output on a display or via CAN interface 12.
- the present invention has been described above on the basis of a preferred exemplary embodiment, it is not restricted to this but can be modified in a variety of ways.
- the detection of the network status according to the above embodiment is only an example and could also be carried out by one of the processors, for example.
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Abstract
Description
Netzwerkkomponente für ein optisches Netzwerk mir Notlauf- fun tion, insbesondere für ein optisches Netzwerk in Ring- topologieNetwork component for an optical network with an emergency function, in particular for an optical network in ring topology
STAND DER TECHNIKSTATE OF THE ART
Die vorliegende Erfindung betrifft eine Ne zwerkkomponente für ein optisches Netzwerk mit Notlauffunktion, insbesondere für ein optisches Netzwerk in Ringtopologie .The present invention relates to a ne component for an optical network with an emergency function, in particular for an optical network in a ring topology.
Multimedia-Systeme in modernen Kraftfahrzeugen sind als vernetzte Systeme aufgebaut, die in einer Ringtopologie optische oder elektrische Bussysteme einsetzen. In einer solchen Ringtopologie können Schlüsselkomponenten (z.B. eine Bedieneinheit) vernetzt sein, deren innerer Aufbau aus einer Vielzahl von Einzelkomponenten (z.B. Man-Machine- Interface-Prozessor, Tuner, Gate- ay etc) besteht. Die Anordnung dieser Komponenten in einem Gehäuse erfordert aus Gründen der Buskonformität einen Nachrichten- und Datenaustausch über den externen Bus, d.h. ein interner Datenaustausch zwischen einzelnen, voneinander unabhängigen Komponenten, ist nicht zulässig. Nach außen verhalten sich die in einem Gerät zusammengefassten Komponenten wie getrennte logische Geräte. Ist in einer solchen Konstellation ein internes Gate-Way z.B. über den CAN-3US mit dem Innenraum-CAN des Fahrzeugs verbunden, so ist bei Ausfall des externen optischen Rings die Weitergabe von CAM-Nachrichten zu Komponenten innerhalb des Ger tes und die Kornunika ion zwischen den Komponenten nicht mehr gegeben. Im Fall eines P.ingbruchs kommt es somit zu einem Totalausfall des Systems.Multimedia systems in modern motor vehicles are constructed as networked systems that use optical or electrical bus systems in a ring topology. In such a ring topology, key components (for example an operating unit) can be networked, the internal structure of which consists of a large number of individual components (for example a man-machine interface processor, tuner, gateway, etc.). The arrangement of these components in a housing requires, for reasons of bus conformity, a message and data exchange via the external bus, ie an internal data exchange between individual, independent components is not permitted. Externally, the components combined in one device behave like separate logical devices. In such a constellation, if an internal gate way is connected to the interior CAN of the vehicle, for example via the CAN-3US, in the event of failure of the external optical ring, the transmission of CAM messages to components within the device and the communication are between the components no longer exist. In the event of a P. break, the system will therefore fail completely.
Fig. 2 zeigt den Aufbau eines bekannten Multimedia-Systems für Kraftfahrzeuge mit einem optischen Bus-System 1 in Form einer Ringtopologie. Als in Kraftfahrzeugen übliche Bus- Systeme können hier D2B, MOST oder ähnliche Systeme zum Einsatz kommen. In diesen optischen Ring sind weitere Komponenten 3a-d eingebunden.2 shows the construction of a known multimedia system for motor vehicles with an optical bus system 1 in the form of a ring topology. D2B, MOST or similar systems can be used here as bus systems customary in motor vehicles. Further components 3a-d are integrated into this optical ring.
Die optische Ankopplung einer bestimmten, hier naher erläuterten Komponente 3d an das optische Bus-System 1 erfolgt über ein Steckersystem 2, das wiederum aus einem Empfängermodul 4 und einem Sendemodul 5 aufgebaut ist. Das Empfängermodul 4 empfangt optische Signale aus dem optischen Bus- System 1 und wandelt diese in elektrische Signale um. Elektrische Signale werden im Sendemodul 5 in optische Signale umgewandelt und in den Ring 1 eingespeist.The optical coupling of a certain component 3d, which is explained in more detail here, to the optical bus system 1 takes place via a plug system 2, which in turn is made up of a receiver module 4 and a transmitter module 5. The receiver module 4 receives optical signals from the optical bus system 1 and converts them into electrical signals. Electrical signals are converted into optical signals in the transmitter module 5 and fed into the ring 1.
Im weiteren ist in Figur 1 schematisch der interne Aufbau der vernetzten Komponente 3d mit voneinander unabhängigen Einzel omponenten 6 und 7 dargestellt. Die Komponente 6 besteht aus einem Transceiver 8 und einem Prozessor 9. Die Komponente 7 besitzt, neben dem Transceiver 10 und dem Pro- zessor 11, noch eine weitere, hier als CAN-Bus-Interface 12 ausgeführte Schnittstelle zum Daten- und Befehlsaustausch mit anderen üblichen Bussysteme im Kfz über die Leitungen CAN_H und CAN_L, welche über den Bus B3 an den Prozessor 11 angeschlossen ist. Leitung 22 ist an einen Ausgang STATUS des Steckersystems 2 angeschlossen und meldet Aktivität (Licht) auf dem optischen Ring 1 an den Prozessor 9 bzw. 11 der internen Komponenten 6 bzw. 7.Furthermore, the internal structure of the networked component 3d with independent components 6 and 7 is shown schematically in FIG. Component 6 consists of a transceiver 8 and a processor 9. In addition to the transceiver 10 and the pro processor 11, yet another interface, here implemented as a CAN bus interface 12, for data and command exchange with other conventional bus systems in the motor vehicle via the lines CAN_H and CAN_L, which is connected to the processor 11 via the bus B3. Line 22 is connected to an output STATUS of plug system 2 and reports activity (light) on optical ring 1 to processor 9 or 11 of internal components 6 or 7.
Optische Signale aus dem Ring 1 stehen als elektrische Signale am Ausgang RX_DATA des Empfängermoduls 4 auf der Leitung 13 zur Verfügung und werden an den Eingang 15 von Transceiver 8 der Komponente 6 weitergereicht.Optical signals from ring 1 are available as electrical signals at output RX_DATA of receiver module 4 on line 13 and are passed on to input 15 of transceiver 8 of component 6.
über den Transceiver 8 kann Prozessor 9 über den Bus Bl Daten und Befehle aus dem Ring holen und über den Ausgang 16 des Transceivers 8 und die Leitung 17 in den Eingang 18 vom Transceiver 10 einspeisen, über den Transceiver 10 erfolgt Über den Bus B2 der Datenaustausch vom Prozessor 11, der seine Daten über den Ausgang 19 vom Transceiver 10 und die Leitung 21 in den Eingang TX_DATA des Sendemoduls einspeist. Nach elektrisch/ optischer Wandlung im Sendemodul 5 stehen die Daten und Befehle auf dem optischen Ring 1 zur Verfügung .Via the transceiver 8, processor 9 can fetch data and commands from the ring via the bus B1 and feed them via the output 16 of the transceiver 8 and the line 17 into the input 18 of the transceiver 10, via the transceiver 10 the data exchange takes place via the bus B2 from the processor 11, which feeds its data via the output 19 from the transceiver 10 and the line 21 into the input TX_DATA of the transmitter module. After electrical / optical conversion in the transmitter module 5, the data and commands are available on the optical ring 1.
Wie aus Figur 2 ersichtlich, besteht nach optisch/ elektrischer Wandlung durch das Empfangermodul 4 und elektrisch-/ optischer Wandlung durch das Sendemodul 5 innerhalb der Komponente 3d ein elektrischer Ring bestehend aus Leiuung Transceiver 8, Leitung 17, Transceiver 10, Leitung 21 kersystem 2.As can be seen from FIG. 2, after optical / electrical conversion by the receiver module 4 and electrical / optical conversion by the transmitter module 5, there is an electrical ring consisting of power within the component 3d Transceiver 8, line 17, transceiver 10, line 21 core system 2.
Empfangt der Prozessor 11 über die CAN-Schnittstelle 12 Daten, die für Prozessor 9 bestimmt sind, oder soll ein Datenaustausch zwischen den Prozessoren 9 und 11 erfolgen, so kann dies nur über den optischen Ring 1, Leitung 13, Transceiver 8, Leitung 17, Transceiver 10 und Leitung 21 erfolgen. Die Koppelstelle zwischen dem optischem Bus-System und dem elektrischem Ring bildet das Steckersystem 2. Bei Bruch des optischen Bus-Systems 1 oder bei fehlerhaftem Kontakt am Steckersystem 2 ist ein Datenaustausch zwischen den Komponenten innerhalb des Gerätes nicht mehr gegeben. Dies hat einen Totalausfall des Gerätes zur Folge, auch wenn innerhalb des Gerätes oder über andere Kfz-spezifische Schnittstellen (z.B. CAN-Schnittstelle 12) ein Betrieb des Gerätes auch ohne weitere Teilnehmer aus dem optischen Bus 1 möglich wäre.If processor 11 receives data intended for processor 9 via CAN interface 12, or if data is to be exchanged between processors 9 and 11, this can only be done via optical ring 1, line 13, transceiver 8, line 17, Transceiver 10 and line 21 take place. The coupling point between the optical bus system and the electrical ring is the connector system 2. If the optical bus system 1 breaks or there is a faulty contact on the connector system 2, data exchange between the components within the device is no longer possible. This results in a total failure of the device, even if operation of the device without additional participants from the optical bus 1 would be possible within the device or via other vehicle-specific interfaces (e.g. CAN interface 12).
Die der vorliegenden Erfindung zugrundeliegende Problematik besteht allgemein darin, eine Netzwerkkomponente für ein optisches Netzwerk mit Notlauffunktion, insbesondere für ein optisches Netzwerk in Ringtopologie, zu konzipieren, die bei Bruch des optischen oder elektrische Rings minimale Notlaufeigenschaften (z.B. Bedienbarkeit durch den Fahrer, Fehleranzeige, akustische Warnungen, Aufrechterhaltung minimaler (Radio-) Funktionen) innerhalb der Komponente gewährleistet . VORTEILE DE? ERFINDUNGThe problem underlying the present invention generally consists in designing a network component for an optical network with emergency operation function, in particular for an optical network in ring topology, which has minimal emergency operation properties (e.g. operability by the driver, error display, acoustic signal) if the optical or electrical ring breaks Warnings, maintenance of minimal (radio) functions guaranteed within the component. ADVANTAGES DE? INVENTION
Die erfmdungsgemafie Netzwerkkomponente für ein optiscnes Netzwerk mit Notlauffunktion , insbesondere für ein optisches Netzwerk in Ringtopologie, mit den Merkmalen des Anspruchs 1 weist folgende Vorteile auf:The network component according to the invention for an optical network with an emergency function, in particular for an optical network in a ring topology, with the features of claim 1 has the following advantages:
für obige Notlaufeigenschaft sind keine weiteren interne Gerateschnittstelle erforderlich;no further internal device interface is required for the above emergency operation;
es wird kein zusatzlicher Nachrichtenkatalog benotigt;no additional news catalog is required;
durch die elektrische Vernetzung der Komponenten innerhalb der Netzwerkkomponente kann im Stör- und Normalbetriεb die identische Software im vollen Leistungsumfang genutzt werden;due to the electrical networking of the components within the network component, the identical software can be used to its full extent in the fault and normal mode;
innerhalb der Netzwerkkomponente ist dieses Konzept belieoig erweiterbar. An der Verbindung zwischen den ersten und zweiten Datenbearbεitungsvorric tung kann eine beliebige Anzahl weiterer Komponenten eingebunden werden.this concept can be expanded as required within the network component. Any number of additional components can be integrated in the connection between the first and second data processing devices.
Die der vorliegenden Erfindung zugrundeliegende Idee besteht darin, eine Notlaufeigenschaft diverser Schlusselkom- ponenten innerhalb einer Netzwerkkomponente dadurch aufrechtzuerhalten, dass diese Schlusselkomponenten in einem minimalen Ringsystem miteinander verschaltet sind. Die vol- le Funktionalität αer Net werkkomponeπte kann dann genutzt werden, vermindert um αie Funktionen, αie durch andere Bus- teilnenmer am optiscnen Ring zur Verfügung gestellt werden.The idea on which the present invention is based is to maintain an emergency running property of various key components within a network component by interconnecting these key components in a minimal ring system. The full The functionality of the network components can then be used, minus the functions that are made available by other bus participants on the optical ring.
In den Unteranspruchen finden sich vorteilhafte Weiterbildungen und Verbesserungen der m Anspruch 1 angegebenen NotlaufSchaltung für ein optisches Netz _n Ringtopologie.Advantageous developments and improvements of the emergency circuit for an optical network _n ring topology can be found in the subclaims.
Gemäß einer bevorzugten Weiterbildung umfaßt die Ankoppe- lungsemricntung ein optisches Steckersystem.According to a preferred development, the coupling device comprises an optical connector system.
Gemäß einer weiteren bevorzugten Weiterbildung weist das Empfangsmodul die Erfassungseinrichtung zum Erfassen des Netzwerkstatus auf und gibt ein logxsches elektrisches Signal von mindestens einem Bit entsprechend dem jeweiligen Netzwerkstatus aktiv/nicht-aktiv aus.According to a further preferred development, the receiving module has the detection device for detecting the network status and outputs a logical electrical signal of at least one bit according to the respective network status active / inactive.
Gemäß einer weiteren bevorzugten Weiterbildung sind die erste Datenbearbeitungseinrichtung und/oder die zweite Daten- bearbeitungsemrichtung mit der Erfassαngseinrichtung verbunden .According to a further preferred development, the first data processing device and / or the second data processing device are connected to the detection device.
Gemäß einer weiteren bevorzugten Weiterbildung weisen die erste Datenbearbeitungsej nπchtung und/oder die zweite Da- tenbearbeitungsemrichtung einen Transceiver und einen damit jeweils verbundenen Prozessor auf.According to a further preferred development, the first data processing device and / or the second data processing device have a transceiver and a processor connected to each.
Gemäß einer weiteren bevorzugten Weiterbildung empfangt die Umschalteinricntung das logische elektrische Signal als Steuersignal und verbindet bei aktiven Netzwerkstatus den Eingangs der ersten Datenverarbeitungseinrichtung mit dem Err.pfar.gsmoöυl und verbindet bei nicht-aktivem Netzwerksta- tus den Eingang der ersten Datenverarbeitungseinrichtung mit dem Ausgang der zweiten Datenvεrarbeitungseinπchtung.According to a further preferred development, the switching device receives the logical electrical signal as Control signal and connects the input of the first data processing device to the Err.pfar.gsmoul when the network status is active and connects the input of the first data processing device to the output of the second data processing device when the network status is not active.
Gemäß einer weiteren bevorzugten Weiterbildung ist die erste und/oder zweite Datenbearbeitungsvorrichtung über eine Schnittstelle mit einem drahtgebundenen Netzwerk verbunden.According to a further preferred development, the first and / or second data processing device is connected via an interface to a wired network.
Gemäß einer weiteren bevorzugten Weiterbildung geben die erste Datenbearbεitungseinrichtung und/oder die zweite Datenbearbeitungseinrichtung ein fehlendes logisches elektrisches Signal zum Anzeigen eines aktiven Netzwerkzustandes nach dem Senden einer eigenen Nachricht auf einem Display oder über die Schnittstelle als Fehlermeldung aus.According to a further preferred development, the first data processing device and / or the second data processing device output a missing logical electrical signal to indicate an active network status after sending an own message on a display or via the interface as an error message.
ZEICHNUNGENDRAWINGS
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert .An embodiment of the invention is shown in the drawings and explained in more detail in the following description.
Es zeigen:Show it:
Fig. 1 den Aufbau eines Multimedia-Systems für Kraftfahrzeuge mit Notlaufeigenschaft gemäß einer Ausführungsform der Erfindung; und Fig. 2 den Aufbau eines bekannten Multimedia-S stems für Kraf fahrzeug .Figure 1 shows the structure of a multimedia system for motor vehicles with emergency running property according to an embodiment of the invention. and Fig. 2 shows the structure of a known multimedia S stems for motor vehicle.
BESCHREIBUNG DEP AUSFUHRUNGSBEISPIELEDESCRIPTION OF DEP EMBODIMENTS
Fig 1 zeigt den Aufbau eines Multimedia-Systems für Kraftfahrzeuge mit Notlaufeigenschaft gemäß einer Ausfuhrungsform αer Erfindung. In Fig. 1 bezeicnnen gleiche Bezugszei- chen wie in Fig. 1 gleiche bzw. funktionsgleiche Komponenten.1 shows the construction of a multimedia system for motor vehicles with emergency running properties according to an embodiment of the invention. In FIG. 1, the same reference numerals as in FIG. 1 denote the same or functionally identical components.
Gemäß Fig. 1 erfolgt bei dieser Ausfuhrungsform ein Einfugen eines Umschalters 23 zur Gewahrleistung von Notlaufei- genschaften. Der Umschalter 23 ist mit seinem Eingang INI und der Leitung 13 mit dem Ausgang RX_DATA des Steckersystems 3 verbunden. Der zweite Eingang IN2 des Umschalters 23 liegt an der Leitung 21 und ist so mit dem Ausgang T _DATA des Steckersystems 3 verbunden. Über die Leitung 28 st der Ausgang OUT des Umschalters 23 mit dem Eingang 15 des Transceivers 8 verounden. Der Eingang EN λ des Umschalters 23 ist mit der Leitung 22 verbunden.According to FIG. 1, a switch 23 is inserted in this embodiment to ensure emergency running properties. The switch 23 is connected with its input INI and the line 13 with the output RX_DATA of the plug system 3. The second input IN2 of the switch 23 is on the line 21 and is thus connected to the output T_DATA of the connector system 3. The output OUT of the switch 23 is connected to the input 15 of the transceiver 8 via the line 28. The input EN λ of the switch 23 is connected to the line 22.
Der Umschalter 23 ist so aufgebaut, dass sein Ausgang OUT in Abhängigkeit von der Signalspannung am Eingang EN λ wahlweise mit einem der Eingänge INI oder IN2 verbunden ist. In Fig. 1 ist das Potential an EN N so gewählt, dass der Eingang INI bei O-Potential mit dem Ausgang OUT verbunden ist, d.h. oei 1-Potentιal ist der Eingang IN2 mit dem Ausgang OJT verbunden. Entsprechend der Anwendung kann das Potential an Ξ ' durch Auswahl eines entsprechenden Schalters oder geeignete Schaltungsmaßnahmen umgekehrt werden.The changeover switch 23 is constructed such that its output OUT is optionally connected to one of the inputs INI or IN2 depending on the signal voltage at the input EN λ . In Fig. 1, the potential at EN N is selected such that the input INI is connected to the output OUT at O potential, ie the input IN2 is connected to the output OJT at 1 potential. Depending on the application, the potential at Ξ 'can be reversed by selecting an appropriate switch or taking suitable circuit measures.
Im Ruhezustand der in Fig. 1 dargestellten Geratekonfiguration ist kein Licht auf dem optischen Ring 1 und über die Leitung 22 liegt 1-Potential an EN des Umschalters 23. Der Eingang IN2 ist mit dem Ausgang OUT verbunden. Ein vorn Prozessor 9 über den Bus Bl gesendetes Signal gelangt über den Ausgang 16 des Transceivers 8 und die Leitung 17 zum Eingang 18 des Transceivers 10. Von hier wird das Signal über den Ausgang 19 des Transceivers 10 und die Leitung 21 an den Eingang TX-DATA des Steckersystems 3 weiter geleitet. Nach elektrisch/optischer Wandlung im Sendemodul 5 liegt das vom Prozessor 9 gesendete Signal auf dem optischen Ring 1, der damit in den aktiven Zustand übergeht.In the idle state of the device configuration shown in FIG. 1, there is no light on the optical ring 1 and there is a 1 potential at the EN of the switch 23 via the line 22. The input IN2 is connected to the output OUT. A signal sent by the processor 9 via the bus B1 passes via the output 16 of the transceiver 8 and the line 17 to the input 18 of the transceiver 10. From here the signal is sent via the output 19 of the transceiver 10 and the line 21 to the input TX- DATA of the connector system 3 passed on. After electrical / optical conversion in the transmitter module 5, the signal sent by the processor 9 lies on the optical ring 1, which thus changes to the active state.
Busaktivität wird durch O-Potential auf der Leitung 22 an die Prozessoren 9 und 11 signalisiert und liegt am Eingang EN ' des Umschalters 23, der durch den Potentialwechsel an E ' den Eingang INI mit dem Ausgang OUT verbindet. Nach optisch/elektrischer Wandlung im Empfängermodul 4 gelangen die Signale vom optischen Ring 1 über den Ausgang RX_DATA des Empfängermoduls 4 und die Leitung 13 zum Eingang INI des Umschalters 23, dessen Ausgang OUT über Leitung 28 mit Eingang 15 des Transceivers 8 verbunden ist. Der Busaufbau ist angeschlossen : Externe Komponenten 3a-c und gerateinterne Komponenten 6 und 7 können Daten untereinander austauschen.Bus activity is signaled by O potential on the line 22 to the processors 9 and 11 and is located at the input EN 'of the switch 23, which connects the input INI to the output OUT by the potential change at E'. After optical / electrical conversion in the receiver module 4, the signals from the optical ring 1 pass via the output RX_DATA of the receiver module 4 and the line 13 to the input INI of the switch 23, whose output OUT is connected to the input 15 of the transceiver 8 via line 28. The bus structure is connected: External components 3a-c and internal components 6 and 7 can exchange data with each other.
Be Bri. n αes optischen Ringes 1 oder fehlerhafter Steckung am Steckersystem 2 Kommt es zu einem Totalausfall des gesamten Bussystems. Dies wird innerhalb des Gerätes bei der vorliegenden Ausfuhrungsform dadurch umgangen, dass m einem derartigen Fehlerfall die Leitung 22 durch den fehlenden Status „Bus aktiv" weiterhin 1-Potentιal fuhrt. Der Umschalter 23 verbindet hierdurch weiterhin den Eingang IN2 mit Ausgang OUT und schließt über Leitung 28, Transceiver 3, Leitung 17, Transceiver 10 und Leitung 21 innerhalb des Gerätes einen elektrischen Ring. Die Kommunikation unter den Komponenten innerhalb des Gerätes bleibt somit bestehen, und über eine Kfz-ubliche Schnittstelle, wie z.B. die CAN-Schnittstelle 12, kann die Kommunikation mit an diesem Bussystem angeschlossenen Geraten erfolgen.Be Bri. n αes optical ring 1 or faulty connection to the connector system 2 If the entire bus system fails completely. This is circumvented within the device in the present embodiment in that, in the event of such a fault, line 22 continues to carry 1-potential due to the missing status “bus active”. In this way, switch 23 continues to connect input IN2 to output OUT and closes via line 28, transceiver 3, line 17, transceiver 10 and line 21 form an electrical ring within the device The communication between the components within the device thus remains, and via a conventional vehicle interface, such as the CAN interface 12, the Communication with devices connected to this bus system.
Über die fehlende Statusmeldung der Leitung 22 nach dem Senden einer eigenen Nachricht können die Prozessoren 9 und 11 diesen Fehler z.B. auf einem Display oder über CAN— Schnittstelle 12 anzeigen bzw. ausgeben.The processors 9 and 11 can e.g. Display or output on a display or via CAN interface 12.
Obwohl die vorliegende Erfindung vorstehend anhand eines bevorzugten Ausfuhrungsbeispiels beschrieben wurde, ist sie darauf nicht beschrankt, sondern auf vielfaltige Weise mo- difizierbar . Insbesondere ist die Erfassung des Netzwerkstatus gemäß der obigen Ausfuhrungsform nur beispielhaft und konnte z.B. auch von einem der Prozessoren durchgeführt werden. Although the present invention has been described above on the basis of a preferred exemplary embodiment, it is not restricted to this but can be modified in a variety of ways. In particular, the detection of the network status according to the above embodiment is only an example and could also be carried out by one of the processors, for example.
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50209297T DE50209297D1 (en) | 2001-07-11 | 2002-07-11 | NETWORK COMPONENTS FOR AN OPTICAL NETWORK WITH EMERGENCY FUNCTION, ESPECIALLY FOR AN OPTICAL NETWORK IN RINGTOPOLOGY |
| EP02754351A EP1410577B1 (en) | 2001-07-11 | 2002-07-11 | Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology |
| US10/380,087 US7260325B2 (en) | 2001-07-11 | 2002-07-11 | Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10133749A DE10133749B4 (en) | 2001-07-11 | 2001-07-11 | Network component for an emergency running optical network, in particular for a ring topology optical network |
| DE10133749.3 | 2001-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003007554A1 true WO2003007554A1 (en) | 2003-01-23 |
Family
ID=7691433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2002/002544 Ceased WO2003007554A1 (en) | 2001-07-11 | 2002-07-11 | Network component for an optical network comprising an emergency operation function, especially for an optical network in ring topology |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7260325B2 (en) |
| EP (1) | EP1410577B1 (en) |
| DE (2) | DE10133749B4 (en) |
| WO (1) | WO2003007554A1 (en) |
Families Citing this family (14)
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|---|---|---|---|---|
| US5898801A (en) | 1998-01-29 | 1999-04-27 | Lockheed Martin Corporation | Optical transport system |
| JP2004048658A (en) * | 2002-05-17 | 2004-02-12 | Yazaki Corp | Optical communication system, signal repeater, optical communication connector |
| US20030215235A1 (en) * | 2002-05-17 | 2003-11-20 | Yazaki Corporation | Optical communication system for vehicle, signal relay apparatus and optical communication connector |
| US7283480B1 (en) | 2002-11-12 | 2007-10-16 | Lockheed Martin Corporation | Network system health monitoring using cantor set signals |
| US7349629B1 (en) | 2002-11-26 | 2008-03-25 | Lockheed Martin Corporation | Methods and systems for creating a digital interconnect fabric |
| US7424228B1 (en) | 2003-03-31 | 2008-09-09 | Lockheed Martin Corporation | High dynamic range radio frequency to optical link |
| WO2004093351A2 (en) * | 2003-03-31 | 2004-10-28 | Lockheed Martin Corporation | Optical network interface systems and devices |
| DE10328684B4 (en) | 2003-06-26 | 2005-07-21 | Daimlerchrysler Ag | Means for detecting the received optical light power |
| DE10336490A1 (en) * | 2003-08-08 | 2005-03-10 | Harman Becker Automotive Sys | Method for communicating two networked by a first network units and two units interconnecting first network |
| US7440699B1 (en) | 2004-06-28 | 2008-10-21 | Lockheed Martin Corporation | Systems, devices and methods for transmitting and receiving signals on an optical network |
| DE102006033639A1 (en) * | 2006-07-20 | 2008-01-24 | Robert Bosch Gmbh | Electronic device for connection to an optical data bus and method |
| GB0718595D0 (en) * | 2007-05-16 | 2007-10-31 | Seereal Technologies Sa | Holograms |
| US10449614B2 (en) | 2014-12-18 | 2019-10-22 | Illinois Tool Works Inc. | Systems and methods for solid state sensor measurements of welding cables |
| US10682722B2 (en) | 2014-12-18 | 2020-06-16 | Illinois Tool Works Inc. | Systems and methods for measuring characteristics of a welding cable with a low power transceiver |
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| US5299312A (en) * | 1990-11-15 | 1994-03-29 | Massachusetts Institute Of Technology | Network fault recovery by controllable switching of subnetworks |
| DE19722189A1 (en) * | 1997-05-27 | 1998-12-03 | Bayerische Motoren Werke Ag | Ring bus operation method for multiple users |
| US6009491A (en) * | 1996-06-20 | 1999-12-28 | Robert Bosch Gmbh | Data transmission method having a data line which is separate from a data bus and is designed as a chain |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5792948A (en) * | 1980-12-02 | 1982-06-09 | Toyota Motor Corp | Loop data transmission system |
| US4985888A (en) * | 1987-04-24 | 1991-01-15 | Madge Networks Limited | Token ring system hierarchy |
| US5127067A (en) * | 1990-09-10 | 1992-06-30 | Westinghouse Electric Corp. | Local area network with star topology and ring protocol |
| US5440655A (en) * | 1993-12-29 | 1995-08-08 | At&T Corp. | Optical fiber connector bypass device and method using same |
| JP4014731B2 (en) * | 1998-07-08 | 2007-11-28 | 矢崎総業株式会社 | Ring network system |
| DE19832039A1 (en) * | 1998-07-16 | 2000-01-20 | Alcatel Sa | Node of a point-to-multipoint network |
| US6898206B2 (en) * | 2001-06-06 | 2005-05-24 | Advanced Fibre Access Corporation | Wavelength division multiplexed (WDM) ring passive optical network (PON) with route protection for replacement of splitter based passive optical networks |
-
2001
- 2001-07-11 DE DE10133749A patent/DE10133749B4/en not_active Expired - Fee Related
-
2002
- 2002-07-11 US US10/380,087 patent/US7260325B2/en not_active Expired - Lifetime
- 2002-07-11 DE DE50209297T patent/DE50209297D1/en not_active Expired - Lifetime
- 2002-07-11 WO PCT/DE2002/002544 patent/WO2003007554A1/en not_active Ceased
- 2002-07-11 EP EP02754351A patent/EP1410577B1/en not_active Revoked
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299312A (en) * | 1990-11-15 | 1994-03-29 | Massachusetts Institute Of Technology | Network fault recovery by controllable switching of subnetworks |
| US6009491A (en) * | 1996-06-20 | 1999-12-28 | Robert Bosch Gmbh | Data transmission method having a data line which is separate from a data bus and is designed as a chain |
| DE19722189A1 (en) * | 1997-05-27 | 1998-12-03 | Bayerische Motoren Werke Ag | Ring bus operation method for multiple users |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1410577B1 (en) | 2007-01-17 |
| EP1410577A1 (en) | 2004-04-21 |
| DE10133749A1 (en) | 2003-01-23 |
| DE10133749B4 (en) | 2010-09-16 |
| US7260325B2 (en) | 2007-08-21 |
| DE50209297D1 (en) | 2007-03-08 |
| US20040076429A1 (en) | 2004-04-22 |
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